这种海绵状组织是形成蛋壳的钙质来源。
This spongy tissue serves as a source of calcium for eggshell formation.
你看，成年雌鸟在产蛋的过程中会在某些长骨内产生一层海绵状的骨组织。
You see, adult female birds during egg production produce a layer of spongy bone tissue inside certain long bones.
肺：胸腔里两个轻软的、海绵状的、有弹性的器官组织，用于呼吸。
Lung: Either of two light, spongy, elastic organs in the chest, used for Breathing.
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